hooker



(Model) 2 Sheets-Sheet 1..-

W. D. HOOKER.

PUMP.

Patented Apr. 4,1882.

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N. PUERS Photoi'nhogmphnr. Wallxingion. m;

(Mode L). 2 Sheets-Sheet 2.

'W'. D. HOOKER.

PUMP.

N0. 255,990. Patented Apr. 4,1882.-

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7 W1: /n E5555 Q I By fi 1 UNITED STATES PATENT F CB a WILLIAM D.HOOKER, OF; OAKLAND, OALlFORNIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 255,990, dated April 4,1882.

- Application filed d'u'ne 1,1881. (Model) To all whom "it may concern:p Be itknown that I, WILLIAM D. HOOKER, of Oakland, in the county ofAlameda and State of California, have invented certain new and usefulImprovements in Pumps; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings.

Myinventiou relatestocertainimprovements in pumps; audit consists,first, in arranging the inclined partitions that separate the ind actionand eduction chambers in each end of the pump in a position parallelwith each other, and in such relation to the case or shell that theopenings for the valve-seats shall be directly in line one over theother, and in providing a small hole or opening in the top of the caseover the said partitions, through which to reach and bore outthevalve-seats, whereby I am enabled to cast the shells or cases of thepumps and the partitiomall in one piece with thecylinder, and to bringthe valve-openings in line with the discharge-outlet at the top togiv'ea straight and direct passage for the waterthrough the pump;secondly, in asimple and effective arrangement for mounting and securingthe valves upon their seats in the chambers of the pump, so that theycan be readily removed and replaced when desired; thirdly, in providinga valved water way or passage between the discharge and suction chambersof the pump, through which the water in the discharge-chamber can bedrawn or returned backinto the suction; and, fourthly,

in a novel cut-oft valve for closing the discharge-opening that leadsfrom the dischargechamber of the pump, all as hereinafter more fullydescribed. 7 t 1 Referring to the accompanying drawin gs, Figure 1 is alongitudinal vertical section. Fig. 2.is a transversesection through xx,Fig. 1. Fig. 3 is a view of the cap or cover. Fig. 4 is a detail view ofthe valves. Fig. 5 shows the valve was arranged to act automatically.

.Fig. 6 is an elevation of one side, showing the 6 cap. Fig. 7 1s adetail Fig. 8 1s a section of the cap and immediate parts, taken in avertical line. Fig. 9 is a section of the same, taken in a-horizontalline.

A is thepumping-cylinder, and B the shell or case inside'of which thewater-chambers and valve mechanism of the pump are contained. The shellor case with its partitions I cast in one piece with the cylinder A,withthe as to uncover the ends of' the water-chambers valves. Thepartitions G O, which separate the chemso that the two partitions oneach side of the vertical wall or partition D will be parallel with eachother. Thesepartitions slopedow'n; ward from the central partition, D,toward the sides of the case on both sides, so that after the shell andthe partitions have been cast a hole or opening, E, can he made in theshellor case above the middle of the partitions and a tool-holder ordrill inserted through it into the upper chamber.

over which the valves are placed by drilling directly through bothpartitions. The open ing in the shell can be quite small, asit is'onlynecessary that it be large enough to admit'the larger drill or reamercan then be inserted into tlle'fihillllbfl through the side opening andsecured to the shank or drill-holder for increasing-the size of theopening in the'partition'sl By this arrangement, therefore, I am enabledto cast the partitions as a permanent part of the shell or case, and todrill theopehings'in each pair through one small hole in the case, whichcan be subsequently plugged up, thereby reducingthe number ofjoints andopenings which are otherwise required. The arrangement ofthe partitionsis also advantageous in giving sufficient room in the suction anddischarge chambers for connecting the suction My improved arrangementfor holding the valves in place and keeping them to their seats isextremely simple and efficient, and possesses several advantages notheretofore obtained in sists in supporting the upper end of theguidespindle of eachvalve by a transverse rod, which passes across thechamber above the valves, and has its ends supported in sockets in thesides of the caseorshell. The arrangeexception of one side, which isremovable, so'

for the purpose of placing and removing the bers of the pump, 1construct upon anincline,

This tool or drillca'n then be used for making the openings in thepartitions shank of a drill or drill-holder through it] A and dischargepipes directly to them without having to core a passage around thecylinder.

the application of valves to pumps. It c'on IOO ment is as follows: Ahole is made through the center of the valve, through which theguide-spindle f passes. The upper end of this spindle is attached to arod, I, which is long enough to extend across the chamber and project ashort distance outside of the wall at the open end of the chambers, anda spiral spring, h, surrounds the guide-spindle between the valve androd.

In casting the case or shell B, Icast or form a sooket,j, in the closedside of each chamber directly opposite the middle of the valve and nearthe top of the chamber. I then take the rod I, to which the valve-guideis attached, and introduce one end of it and the valve into the chamberthrough the side opening. The opposite or farthest end of the rod Iintroduce into the socket j and place the valve upon its seat, allowingthe outer end of the rod to project through the opening in the side ofthe case. The valve in each chamber is placed in this position. Thesprings h are long enough to press the outer end of the rod upwardslightly above its proper position, when the opposite end of the rod issecured in its socket. The cap or cover K, which fits against the sideof the case or shell and covers the open ends of the chamber, is thenfitted and secured in place. This cap or cover I provide with shallowsockets, e, on its inside, in the proper position to receive and holdthe outer ends of these rods, so that in placing the cover on I firstintroduce the ends of the rods in the sockets, and then press the coverto its place, which brings the rod to a horizontal position and pressesthe spring upon the valve. The cover is then fastened in place, thusholding the rod in a horizontal position and securing the valvesupontheir seats. This arrangement enables me to remove and replace thevalves readily when desired, as all I haveto do is to remove the cap orcover K and withdraw or replace the rods with their attached valves.When several valves are required to be secured in a line with each othera-single rod supported in the above manner can be used for a'l of them.

Another improvement which I introduceinto my pump, as before stated, iswhat I call a draining-valve, the object of which is to connect thedischarge-chamber with the suction-chamber, so that when desired thewater in the discharge-chamber can be drawn down into the suction, fromwhence it can pass back into the well or source from which the pumpdraws the supply. This is of special advantage in cold weather, as itprevents the pump from freezing up when it is allowed to stand still. Todo this I make a hole or orifice, p, horizontally through the uprightpartition D, from side to side of the pump. directly opposite the pointwhere the central screw or bolt that fastens the cover or cap K to theside of the pump enters. I then tap the end of the hole or orifice onthe side against which the cap fits and screw the bolt that fastens thecap or cover in place directly into the end of this hole.

Thisserves a twofold purpose: First, the screw plugs the end of thehole, and, secondly, it avoids making an extra hole to fasten the screwin. I then make a port or passage, q, leading from the discharge-chamberof the pump down through the upright partition and connect it with thehorizontal passage near the end of the screw that fastens the cover on.I then make another and independent port or passage, 1, leading from thehorizontal passage, near its opposite end, down into the suctionchamber.In the opposite end of the horizontal passage, on the opposite side ofthe pump, I screw a plug, 8, through which a hole is made which istapped with screwthreads, and through this hole a screw-rod, t, passes.On the end of this rod, which projects into the orifice, isa valve, u,that fits in the horizontal passage between the two vertical passages qr, so as to cut off communication between them. Ahand-wheel on the outerend of the rod then serves to turn the-rod and move the valve. Now, whenthe pump has been stopped the valve a can be moved back by turning thehand-wheel and rod, so as to uncover the vertical passage 7' and allowthe water to pass through the horizontal passage or orifice from onevertical port or passage to the other, thus draining thedischarge-chamber of the pump into the suction.

By substituting a stuifing-box for the plug 8 and using a smooth rod forthe screw-rod t, I can place a weighted lever (shown at Fig. 5) so as topress against the end of the rod and counteract any given pressureagainst the piston or valve u in the horizontal passage. Thisarrangement will prevent any unusual strain or pressure in the dischargechamber or pipe by yielding to the pressure and allowing a portion ofwater to pass down into the suction.

I also provide an improved valve arrangement for opening or closing theexit or discharge opening in the discharge-chamber when the pump is inoperation. This valve A is moved by a screw rod or spindle, a, whichpasses diagonallythrough the discharge-chamher and through ascrew-bushing, w, which is secured in a hole in the case or shell. Theinner end of the rod is attached to the center of the valve at an angleto its plane by a loose joint, which will allow it to adjust itself uponthe valve-seat when it is pressed against it. The bushing has a sleeveor stuffing-box, w, projectingfromitinsideofthechamber,through which therod passes, so as to make a tight joint and to prevent the valvefromgetting displaced when it is drawn away fromits seat. A rod, to,passes through a holein alug,e, on the inner end of the sleeve, and hasits opposite end attached to the valve at one side of its center. Thisholds it in the proper position to drop squarely on the seat, butpermits sufficient movement of the valve to allow it to adjust itselfwhen pressed down against the seat. The diagonal arrangement of the rodthat moves the valve will have a tendency to slide the valve across theseat when a strong pressure is applied. To prevent this I cast a curvedlug or bead, r, around a portion of the valve-seat, against which theedge of the valve will strike when it is forced down on the seat, andthis prevents it from sliding across the valve-opening and bending therod. A handwheel, d, on the outer end of the rod serves to turn it tomove the valve. By this means the valve is opened and closed by anangular movement of the valve that lifts it bodily from its seat by acut-oif movement, which immediately relieves it from the excessivepressure of the water in the chamber and leavesthe opening free andunobstructed.

The cap or cover K,'which fits against the side of the pump and coversthe ends of the chambers, as above stated, 1 secure by means of a singlebolt, which passes through its center and into the upright partition. Iemploy, however, at or near each end a steady-pin, which enters a socketin the shell or case and keeps the cover in the proper position. Thesesteady-pins I also make to serve another purpose. Each pin at hasscrew-threads cut on it close to its head, as shown, and the holethrough the cover in which it is secured is tapped with screw threads,so that when the screw portion of the pin has been screwed into the holein the cover the end of the screw that projects to the inside of thecover, being plain, will form the steady-pins that enter the sockets inthe shell. Now, when it is desired to remove the cover and the centralbolt has been removed, I. can, by turning the screw stead y-pinsslightly inward, force the cover outward and break the adhesion of thecover and packing, so that the cover is loosened and easily taken oflwithout the use of chisels or hammers.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a pump, the outside shell or case, B, having the central uprightpartition, D, and

. the inclined partitions O O, that separate the induction and eductionchambers at each end of the pump, said partitions O 0, being so arrangedthat while they inclinetoward the said central partition, D, they arealso parallel with each other, in combination with the passages E in thetop of the shell, directly over and in line with the valve-seats in thepartitions O O, substantially as described and set forth.

2. The improvement in mounting valves upon valve-seats, consisti'nginconnecting the upper ends of their guide-spindles to a transverse rod,I, the ends of which are supported by bearings in the sides of the case,substan- 6o tially as described.

3. The rod 1, having the gnide-spindlefattached to it, in combinationwith the socket j on the case or shell B andthe removable cover K, withits sockets e, substantially as and for the purpose described.

4-. In a pump, the transverse passage or orifice p, connected by thevertical passage q with the discharge-chamber of the pump, and alsoconnected by another and independent vertical passage, 1*, with thesuction-chamber of the pump, in combination with the valve or piston u,arranged to move in the horizontal passage and open or closecommunication between the vertical passages, substantially as specified.

5. The plug-valve arrangement for closing the dischargeopening,consisting ofthe valve A, attached loosely to the screw-rod V, saidscrew-rod passing diagonally through a stuffing-box, w, in the side ofthe case, and connected by a rod, a,with the sleeve of the stuifing-box,in combination with the lug or bead 2 around the discharge-opening,substantially as described.

6. The cover K, having the steady-pins a, provided with a threadedportion near their bases, which screw into threaded holes in the cover,while the projecting portion or pin is plain, for the purpose specified.

In witness whereof I have hereunto set my hand and seal.

WILLIAM DAVIS. HOOKER. [a s] Witnesses:

W. F. CLARK, EDWARD E. OSBORN.

